A common trend I'm seeing in the Kryptonian designs is a kind of telescoping effect, for lack of a better word. The S shield shown at the end of the trailer has the designs in the S telescoping as the camera pulls back. The designs on the gauntlets and around the waist and legs of Superman's suit have that layered look. Both Zod's and Faora's armors look like they might have a facemask retracted into their chest pieces. Hell, even the fabric of Jor El's robe has the look. I really think those are all hints as to what to expect.